**Products are sold online and in-store simultaneously. The stock quantity may not be updated in the online system in time. **
**Please contact our team for confirmation.**
**Goods in stock will be sent within 1-3 working days.**
This is a consignment pre-owned product 😊
Please read the transaction details below:
💻 The website price is the final price (non-negotiable). If acceptable:
🌟 Each pre-owned item is limited to one unit only. Please contact our staff to confirm availability
🌟 Advance appointment required for cosmetic inspection. Basic function testing only (no sound testing) 🙏🏻
🌟 Once confirmed, the transaction must be completed immediately on-site
🌟 Cash payment only
🧡 Showroom pick-up only 🙏🏻
🌟 Sold as-is at the time of transaction. No return or exchange
📵 No reservation by phone or text
🎁 Membership rewards and discounts are not applicable
NuForce P-20 Preamplifier
Design & Features
The P-20s numerically controlled, switched-resistor ladder network features the last word in thin-film technology. In order to improve precision and lower the noise floor to the vanishing point, weve implemented a single thin-film, ultra-low-noise resistor in the signal path for each of the volume controls 0.5dB gain settings, thus permitting the listener to achieve the desired volume level in precise 0.5dB steps. As a further benefit, the listener is able to adjust any inputs level to exactly correspond with any other, thereby simplifying the matching of source-component volume levels.
The heart of the P-20 boasts an all-discrete, fastidiously precise amplifier module. Because speed is of paramount significance, weve reduced capacitive loading on the final voltage amp with the implementation of ultra-low-noise, monolithic dual JFETs, specially selected VMOS FETs, and extremely flat hFE bipolar transistors in a dual cascode configuration, all of which are combined within a driven-shield arrangement. The P-20 offers a 5MHz power bandwidth, an S/N ratio exceeding 100dB, and a dynamic range in excess of 120 dB. There are no capacitors or DC-servos in the inherently stable P-20s gain circuit.
And, in keeping with these advances, weve paid a great deal of attention to isolation. Weve covered the amplifier modules with thermal insulation along with heavy copper shields in order to avoid thermal drift or signal-degrading heating effects. Each amp modules self-contained shunt regulator further assists in isolation from power supplies. A similarly isolated floating-current source supply feeds each module to insure separation from ground-system noise.
Since all control functions are powered by discrete power supplies, the P-20s design prevents any logic circuitry clock-signal noise from ever contaminating the analog section's low-level signals. In keeping with the P-20s state-of-the-art features, we include a delightfully convenient, custom-designed remote control. In sum, the P-20s near-to-molecular clarity offers the last word in utterly transparent, organic sound in effect, a stress-free listening experience as close to live as audio permits. Better still, these features can be activated by a 12V trigger signal enabling system integration without the need for manual intervention. All that's required is a processor or receiver with a common 12V trigger connection.
- Ultra low noise 1nV/ Hz JFETs Volume control features numerically controlled
- switched-resistor ladder network with the latest in thin-film
- ultra-low-noise resistor technology
- Full microprocessor control with memory retention
- No capacitor and no DC-servo in the signal path 3 separate power supplies
- Individual audio channels are shielded with heavy copper shield with thermal barrier
- Solid stainless steel back connector panel forms a solid signal ground reference
Specifications
Inputs: 1 XLR, 5 RCA
Outputs: 1 RCA, 1 XLR
THD+N: at 1kHz = 0.0006% at 20-20kHz = 0.003% at DC to 1MHz
S/N Ratio: 100dB at 20-20kHz S/N > 90dB at DC to 1MHz
Frequency Response: at 20-20kHz = +0.02dB/-0dB at DC to 1Mhz = +0.5dB/-0dB at DC-2.5 MHz +0/-3dB
Maximum Output: 7V RMS
Phase Shift: = 0
Input Impedance: = 10K ohm
Output Impedance: = 100 ohm
Weight: 17lbs
Width (W): 430 mm
Height (H): 65 mm
Depth (D): 400 mm
NuPrime Evolution One Amplifier
Design & Features
Our new generation of amplifiers have moved even further away from the cold, hard, flat and harsh sound typically associated with Class-D amplification. The Evolution One has Class-A like warmth and naturalness that no other competing Class-D amplifier can recreate.
In addition, the Evolution One is able to create an enveloping ambience that reaches out and invites the listener to the music. All these pushes the performance of the Evolution One to yet a higher level!
- A new input stage with a 1MΩ input impedance. The high input impedance allows the pre-amplifier to see a much easier load and hence introduces less harmonic distortion and phase delay to the system.
- Latest NuPrime 700KHz high-speed switching Class-D module allows greater resolution to be achieved.
- High-speed computing simulations were performed for the Evolution One design, in order to achieve the highest input impedance and the lowest phase delay.
- The power supply has been enhanced to deliver cleaner and more stable power with lower noise floor.
- High Quality copper strips instead of usual cables are used to connect the power supply to the amplifier’s circuitry, maximizing power delivery.
- The Evolution One outperforms its predecessor in every aspect which NuPrime amplifiers are known for by having:
- Wider and deeper soundstage.
- Faster dynamics with greater range.
- Lower distortion and noise.
- Cleaner background that provides greater detail and nuances.
Specification
Power Output (rated) : 240W @ 8 Ohms, 330W @ 4 Ohms
Power Output (peak) : 285W @ 8 Ohms, 390W @ 4 Ohms
Gain : x 28
Max output current 25A
Sensitivity (to rated power) : 1.5Vrms
Input Impedance : 1M Ohms
Total Harmonic Distortion (THD) : 0.01%
Frequency Response : 0Hz to 50kHz (-3dB)
Signal to Noise Ratio (SNR) : 91dB @ 10W
Rated / Peak Current: 10A / 22A
Standby Power : 1.6W @ 115V outlet, 1.7W @ 230V outlet
Idle Power : 17.4W @ 115V outlet, 18.7W @ 230V outlet
Worldwide AC voltage : (115VAC / 230VAC) with Voltage Select Switch
AC Fuse: Slow blow, 5A, 250VAC
